Nginx Proxy Manager on Your Home Lab: Performance Tuning Beyond the Defaults

Short summary

Nginx Proxy Manager ships with conservative defaults that fail under real traffic — short timeouts break LLM API streaming, small buffers cause 502s during webhook bursts, and SSL session resumption is unconfigured. This article walks through concrete Docker Compose fixes, custom nginx.conf overrides that survive container restarts, and per-host advanced config blocks for proxy_read_timeout, upstream keepalives, and TLS tuning. It also covers volume mount pitfalls, image pinning, IPv6 binding issues, and healthcheck misconfigurations that trip up NPM deployments.

• •Default NPM config causes upstream timeouts on LLM API calls, 502s on webhook bursts, and unnecessary SSL latency
• •Provides concrete Docker Compose and nginx.conf overrides for worker tuning, buffer sizing, keepalives, and proxy timeouts
• •Covers operational gotchas: image pinning, named volumes vs bind mounts, IPv6 bind failures, and healthcheck endpoint selection

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